Finding the Fourth Proportional to 196,111,430.76, 270,663,196.50 and 148,990,964.34

Step by Step Solution

1. Step 1: Write the proportion equation
   196,111,430.76 : 270,663,196.50 = 148,990,964.34 : x
2. Step 2: Convert to fraction form
   196,111,430.76/270,663,196.50 = 148,990,964.34/x
3. Step 3: Cross multiply
   196,111,430.76x = 270,663,196.50 × 148,990,964.34
4. Step 4: Simplify right side
   196,111,430.76x = 40,326,370,657,881,912
5. Step 5: Solve for x
   x = 40,326,370,657,881,912/196,111,430.76
6. Step 6: Final answer
   x = 205,629,883.49