Finding the Fourth Proportional to 77,642,845.38, 107,146,387.71 and 42,835,816.98

Step by Step Solution

1. Step 1: Write the proportion equation
   77,642,845.38 : 107,146,387.71 = 42,835,816.98 : x
2. Step 2: Convert to fraction form
   77,642,845.38/107,146,387.71 = 42,835,816.98/x
3. Step 3: Cross multiply
   77,642,845.38x = 107,146,387.71 × 42,835,816.98
4. Step 4: Simplify right side
   77,642,845.38x = 4,589,703,054,013,681
5. Step 5: Solve for x
   x = 4,589,703,054,013,681/77,642,845.38
6. Step 6: Final answer
   x = 59,113,019.77