Finding the Fourth Proportional to 101,774.16, 140,465.15 and 56,466.72

Step by Step Solution

1. Step 1: Write the proportion equation
   101,774.16 : 140,465.15 = 56,466.72 : x
2. Step 2: Convert to fraction form
   101,774.16/140,465.15 = 56,466.72/x
3. Step 3: Cross multiply
   101,774.16x = 140,465.15 × 56,466.72
4. Step 4: Simplify right side
   101,774.16x = 7,931,606,294.81
5. Step 5: Solve for x
   x = 7,931,606,294.81/101,774.16
6. Step 6: Final answer
   x = 77,933.40