Finding the Fourth Proportional to 56,053.32, 77,884.42 and 55,468.30

Step by Step Solution

1. Step 1: Write the proportion equation
   56,053.32 : 77,884.42 = 55,468.30 : x
2. Step 2: Convert to fraction form
   56,053.32/77,884.42 = 55,468.30/x
3. Step 3: Cross multiply
   56,053.32x = 77,884.42 × 55,468.30
4. Step 4: Simplify right side
   56,053.32x = 4,320,116,373.89
5. Step 5: Solve for x
   x = 4,320,116,373.89/56,053.32
6. Step 6: Final answer
   x = 77,071.55