Finding the Fourth Proportional to 72,326,014.56, 99,810,807.72 and 39,286,815.36

Step by Step Solution

1. Step 1: Write the proportion equation
   72,326,014.56 : 99,810,807.72 = 39,286,815.36 : x
2. Step 2: Convert to fraction form
   72,326,014.56/99,810,807.72 = 39,286,815.36/x
3. Step 3: Cross multiply
   72,326,014.56x = 99,810,807.72 × 39,286,815.36
4. Step 4: Simplify right side
   72,326,014.56x = 3,921,248,773,828,102.50
5. Step 5: Solve for x
   x = 3,921,248,773,828,102.50/72,326,014.56
6. Step 6: Final answer
   x = 54,216,298.21