Finding the Fourth Proportional to 72,309,762.18, 99,818,007.89 and 48,820,119.26

Step by Step Solution

1. Step 1: Write the proportion equation
   72,309,762.18 : 99,818,007.89 = 48,820,119.26 : x
2. Step 2: Convert to fraction form
   72,309,762.18/99,818,007.89 = 48,820,119.26/x
3. Step 3: Cross multiply
   72,309,762.18x = 99,818,007.89 × 48,820,119.26
4. Step 4: Simplify right side
   72,309,762.18x = 4,873,127,048,742,231
5. Step 5: Solve for x
   x = 4,873,127,048,742,231/72,309,762.18
6. Step 6: Final answer
   x = 67,392,381.08