Finding the Fourth Proportional to 77,951,830.47, 107,573,559.72 and 42,669,836.82

Step by Step Solution

1. Step 1: Write the proportion equation
   77,951,830.47 : 107,573,559.72 = 42,669,836.82 : x
2. Step 2: Convert to fraction form
   77,951,830.47/107,573,559.72 = 42,669,836.82/x
3. Step 3: Cross multiply
   77,951,830.47x = 107,573,559.72 × 42,669,836.82
4. Step 4: Simplify right side
   77,951,830.47x = 4,590,146,238,861,057
5. Step 5: Solve for x
   x = 4,590,146,238,861,057/77,951,830.47
6. Step 6: Final answer
   x = 58,884,393.24