Finding the Fourth Proportional to 77,530,196.91, 106,992,389.19 and 42,724,132.89

Step by Step Solution

1. Step 1: Write the proportion equation
   77,530,196.91 : 106,992,389.19 = 42,724,132.89 : x
2. Step 2: Convert to fraction form
   77,530,196.91/106,992,389.19 = 42,724,132.89/x
3. Step 3: Cross multiply
   77,530,196.91x = 106,992,389.19 × 42,724,132.89
4. Step 4: Simplify right side
   77,530,196.91x = 4,571,157,053,972,159
5. Step 5: Solve for x
   x = 4,571,157,053,972,159/77,530,196.91
6. Step 6: Final answer
   x = 58,959,698.75