Finding the Fourth Proportional to 72,302.41, 99,779.61 and 42,098.32

Step by Step Solution

1. Step 1: Write the proportion equation
   72,302.41 : 99,779.61 = 42,098.32 : x
2. Step 2: Convert to fraction form
   72,302.41/99,779.61 = 42,098.32/x
3. Step 3: Cross multiply
   72,302.41x = 99,779.61 × 42,098.32
4. Step 4: Simplify right side
   72,302.41x = 4,200,553,951.26
5. Step 5: Solve for x
   x = 4,200,553,951.26/72,302.41
6. Step 6: Final answer
   x = 58,097.01