Finding the Fourth Proportional to 76,627.59, 105,746.58 and 42,637.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,627.59 : 105,746.58 = 42,637.50 : x
2. Step 2: Convert to fraction form
   76,627.59/105,746.58 = 42,637.50/x
3. Step 3: Cross multiply
   76,627.59x = 105,746.58 × 42,637.50
4. Step 4: Simplify right side
   76,627.59x = 4,508,769,804.75
5. Step 5: Solve for x
   x = 4,508,769,804.75/76,627.59
6. Step 6: Final answer
   x = 58,840.03