Finding the Fourth Proportional to 42,345.86, 63,432.65 and 33,980.58

Step by Step Solution

1. Step 1: Write the proportion equation
   42,345.86 : 63,432.65 = 33,980.58 : x
2. Step 2: Convert to fraction form
   42,345.86/63,432.65 = 33,980.58/x
3. Step 3: Cross multiply
   42,345.86x = 63,432.65 × 33,980.58
4. Step 4: Simplify right side
   42,345.86x = 2,155,478,322.89
5. Step 5: Solve for x
   x = 2,155,478,322.89/42,345.86
6. Step 6: Final answer
   x = 50,901.75