Finding the Fourth Proportional to 28,331,947.86, 42,493,167.48 and 7,863,746.82

Step by Step Solution

1. Step 1: Write the proportion equation
   28,331,947.86 : 42,493,167.48 = 7,863,746.82 : x
2. Step 2: Convert to fraction form
   28,331,947.86/42,493,167.48 = 7,863,746.82/x
3. Step 3: Cross multiply
   28,331,947.86x = 42,493,167.48 × 7,863,746.82
4. Step 4: Simplify right side
   28,331,947.86x = 334,155,510,642,577.38
5. Step 5: Solve for x
   x = 334,155,510,642,577.38/28,331,947.86
6. Step 6: Final answer
   x = 11,794,300.64