Finding the Fourth Proportional to 42,907,066.48, 64,362,582.60 and 14,155,714.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,907,066.48 : 64,362,582.60 = 14,155,714.72 : x
2. Step 2: Convert to fraction form
   42,907,066.48/64,362,582.60 = 14,155,714.72/x
3. Step 3: Cross multiply
   42,907,066.48x = 64,362,582.60 × 14,155,714.72
4. Step 4: Simplify right side
   42,907,066.48x = 911,098,357,767,129.38
5. Step 5: Solve for x
   x = 911,098,357,767,129.38/42,907,066.48
6. Step 6: Final answer
   x = 21,234,226.26