Finding the Fourth Proportional to 56,538, 78,039.60 and 32,681.52

Step by Step Solution

1. Step 1: Write the proportion equation
   56,538 : 78,039.60 = 32,681.52 : x
2. Step 2: Convert to fraction form
   56,538/78,039.60 = 32,681.52/x
3. Step 3: Cross multiply
   56,538x = 78,039.60 × 32,681.52
4. Step 4: Simplify right side
   56,538x = 2,550,452,748.19
5. Step 5: Solve for x
   x = 2,550,452,748.19/56,538
6. Step 6: Final answer
   x = 45,110.42