Finding the Fourth Proportional to 12,983,372.88, 19,462,403.86 and 5,412,503.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,983,372.88 : 19,462,403.86 = 5,412,503.76 : x
2. Step 2: Convert to fraction form
   12,983,372.88/19,462,403.86 = 5,412,503.76/x
3. Step 3: Cross multiply
   12,983,372.88x = 19,462,403.86 × 5,412,503.76
4. Step 4: Simplify right side
   12,983,372.88x = 105,340,334,070,888.50
5. Step 5: Solve for x
   x = 105,340,334,070,888.50/12,983,372.88
6. Step 6: Final answer
   x = 8,113,479.84