Finding the Fourth Proportional to 52,191,910.95, 78,286,842.69 and 21,066,740.18

Step by Step Solution

1. Step 1: Write the proportion equation
   52,191,910.95 : 78,286,842.69 = 21,066,740.18 : x
2. Step 2: Convert to fraction form
   52,191,910.95/78,286,842.69 = 21,066,740.18/x
3. Step 3: Cross multiply
   52,191,910.95x = 78,286,842.69 × 21,066,740.18
4. Step 4: Simplify right side
   52,191,910.95x = 1,649,248,574,462,762.25
5. Step 5: Solve for x
   x = 1,649,248,574,462,762.25/52,191,910.95
6. Step 6: Final answer
   x = 31,599,697.05