Finding the Fourth Proportional to 117,007,034.54, 161,474,783.34 and 64,796,070.21

Step by Step Solution

1. Step 1: Write the proportion equation
   117,007,034.54 : 161,474,783.34 = 64,796,070.21 : x
2. Step 2: Convert to fraction form
   117,007,034.54/161,474,783.34 = 64,796,070.21/x
3. Step 3: Cross multiply
   117,007,034.54x = 161,474,783.34 × 64,796,070.21
4. Step 4: Simplify right side
   117,007,034.54x = 10,462,931,398,443,178
5. Step 5: Solve for x
   x = 10,462,931,398,443,178/117,007,034.54
6. Step 6: Final answer
   x = 89,421,387.69