Finding the Fourth Proportional to 413,020,973.64, 570,010,116.42 and 308,417,441.52

Step by Step Solution

1. Step 1: Write the proportion equation
   413,020,973.64 : 570,010,116.42 = 308,417,441.52 : x
2. Step 2: Convert to fraction form
   413,020,973.64/570,010,116.42 = 308,417,441.52/x
3. Step 3: Cross multiply
   413,020,973.64x = 570,010,116.42 × 308,417,441.52
4. Step 4: Simplify right side
   413,020,973.64x = 175,801,061,746,773,728
5. Step 5: Solve for x
   x = 175,801,061,746,773,728/413,020,973.64
6. Step 6: Final answer
   x = 425,646,814.49