Finding the Fourth Proportional to 42,732,185.76, 64,053,488.88 and 15,788,656.80

Step by Step Solution

1. Step 1: Write the proportion equation
   42,732,185.76 : 64,053,488.88 = 15,788,656.80 : x
2. Step 2: Convert to fraction form
   42,732,185.76/64,053,488.88 = 15,788,656.80/x
3. Step 3: Cross multiply
   42,732,185.76x = 64,053,488.88 × 15,788,656.80
4. Step 4: Simplify right side
   42,732,185.76x = 1,011,318,552,768,936.50
5. Step 5: Solve for x
   x = 1,011,318,552,768,936.50/42,732,185.76
6. Step 6: Final answer
   x = 23,666,436.31