Finding the Fourth Proportional to 31,005,516.13, 42,791,686.61 and 17,779,868.73

Step by Step Solution

1. Step 1: Write the proportion equation
   31,005,516.13 : 42,791,686.61 = 17,779,868.73 : x
2. Step 2: Convert to fraction form
   31,005,516.13/42,791,686.61 = 17,779,868.73/x
3. Step 3: Cross multiply
   31,005,516.13x = 42,791,686.61 × 17,779,868.73
4. Step 4: Simplify right side
   31,005,516.13x = 760,830,570,491,590
5. Step 5: Solve for x
   x = 760,830,570,491,590/31,005,516.13
6. Step 6: Final answer
   x = 24,538,555.25