Finding the Fourth Proportional to 76,089.02, 105,002.28 and 42,555.02

Step by Step Solution

1. Step 1: Write the proportion equation
   76,089.02 : 105,002.28 = 42,555.02 : x
2. Step 2: Convert to fraction form
   76,089.02/105,002.28 = 42,555.02/x
3. Step 3: Cross multiply
   76,089.02x = 105,002.28 × 42,555.02
4. Step 4: Simplify right side
   76,089.02x = 4,468,374,387.95
5. Step 5: Solve for x
   x = 4,468,374,387.95/76,089.02
6. Step 6: Final answer
   x = 58,725.61