Finding the Fourth Proportional to 101,127, 139,555.32 and 56,415

Step by Step Solution

1. Step 1: Write the proportion equation
   101,127 : 139,555.32 = 56,415 : x
2. Step 2: Convert to fraction form
   101,127/139,555.32 = 56,415/x
3. Step 3: Cross multiply
   101,127x = 139,555.32 × 56,415
4. Step 4: Simplify right side
   101,127x = 7,873,013,377.80
5. Step 5: Solve for x
   x = 7,873,013,377.80/101,127
6. Step 6: Final answer
   x = 77,852.73