Finding the Fourth Proportional to 8,217,477.18, 12,319,534.89 and 3,428,733.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,217,477.18 : 12,319,534.89 = 3,428,733.42 : x
2. Step 2: Convert to fraction form
   8,217,477.18/12,319,534.89 = 3,428,733.42/x
3. Step 3: Cross multiply
   8,217,477.18x = 12,319,534.89 × 3,428,733.42
4. Step 4: Simplify right side
   8,217,477.18x = 42,240,400,996,199.02
5. Step 5: Solve for x
   x = 42,240,400,996,199.02/8,217,477.18
6. Step 6: Final answer
   x = 5,140,312.54