Finding the Fourth Proportional to 72,003,918.81, 99,365,669.58 and 38,964,164.46

Step by Step Solution

1. Step 1: Write the proportion equation
   72,003,918.81 : 99,365,669.58 = 38,964,164.46 : x
2. Step 2: Convert to fraction form
   72,003,918.81/99,365,669.58 = 38,964,164.46/x
3. Step 3: Cross multiply
   72,003,918.81x = 99,365,669.58 × 38,964,164.46
4. Step 4: Simplify right side
   72,003,918.81x = 3,871,700,291,193,139
5. Step 5: Solve for x
   x = 3,871,700,291,193,139/72,003,918.81
6. Step 6: Final answer
   x = 53,770,688.53