Finding the Fourth Proportional to 76,527.59, 105,609.86 and 42,537.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,527.59 : 105,609.86 = 42,537.50 : x
2. Step 2: Convert to fraction form
   76,527.59/105,609.86 = 42,537.50/x
3. Step 3: Cross multiply
   76,527.59x = 105,609.86 × 42,537.50
4. Step 4: Simplify right side
   76,527.59x = 4,492,379,419.75
5. Step 5: Solve for x
   x = 4,492,379,419.75/76,527.59
6. Step 6: Final answer
   x = 58,702.74