Finding the Fourth Proportional to 58,699.84, 88,046.52 and 42,921.04

Step by Step Solution

1. Step 1: Write the proportion equation
   58,699.84 : 88,046.52 = 42,921.04 : x
2. Step 2: Convert to fraction form
   58,699.84/88,046.52 = 42,921.04/x
3. Step 3: Cross multiply
   58,699.84x = 88,046.52 × 42,921.04
4. Step 4: Simplify right side
   58,699.84x = 3,779,048,206.78
5. Step 5: Solve for x
   x = 3,779,048,206.78/58,699.84
6. Step 6: Final answer
   x = 64,379.19