Finding the Fourth Proportional to 55,124,981.31, 82,699,929.18 and 18,236,784.77

Step by Step Solution

1. Step 1: Write the proportion equation
   55,124,981.31 : 82,699,929.18 = 18,236,784.77 : x
2. Step 2: Convert to fraction form
   55,124,981.31/82,699,929.18 = 18,236,784.77/x
3. Step 3: Cross multiply
   55,124,981.31x = 82,699,929.18 × 18,236,784.77
4. Step 4: Simplify right side
   55,124,981.31x = 1,508,180,808,536,403
5. Step 5: Solve for x
   x = 1,508,180,808,536,403/55,124,981.31
6. Step 6: Final answer
   x = 27,359,298.32